Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks
It is meaningful to study the diffusion of toxic substances and evacuation routes in metal mine fires. In this paper, numerical simulation was employed to investigate the characteristics of smoke diffusion, the variations in fire-induced pressure, and the evacuation routes of miners in full-scale mi...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017271 |
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| author | Menghui Xiao Cuifeng Du Yuan Wang Jiuzhu Wang Baomeng Chang |
| author_facet | Menghui Xiao Cuifeng Du Yuan Wang Jiuzhu Wang Baomeng Chang |
| author_sort | Menghui Xiao |
| collection | DOAJ |
| description | It is meaningful to study the diffusion of toxic substances and evacuation routes in metal mine fires. In this paper, numerical simulation was employed to investigate the characteristics of smoke diffusion, the variations in fire-induced pressure, and the evacuation routes of miners in full-scale mine fire scenarios. The results indicated that CO concentration significantly decreased at roadway corners, and both CO concentration and temperature gradually decreased with increasing depth. It is a good choice for miners to escape towards the deeper areas or along curved structural directions. Miners in the working face near the fire zone had an optimal evacuation window of only 3 min, and the optimal evacuation times varied for different mining levels and sublevels. Consequently, miners must formulate different evacuation plans within the optimal time frame. The fire-induced pressure is exponentially related to temperature rise, with a fitted equation for a 10° ramp expressed as Pfire = 150.58ΔT0.18. A methodology for planning mine fire evacuation routes was proposed, resulting in improved evacuation routes that allow miners to avoid more dangerous routes, thereby significantly enhancing evacuation safety. |
| format | Article |
| id | doaj-art-f18b3be51ff24597806d7fd865ee6374 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-f18b3be51ff24597806d7fd865ee63742025-02-02T05:27:11ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105696Research on smoke diffusion and evacuation routes of mine fires with complex roadway networksMenghui Xiao0Cuifeng Du1Yuan Wang2Jiuzhu Wang3Baomeng Chang4School of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China; State Key Laboratory of High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing, Ministry of Education, 100083, Beijing, China; Key Laboratory for Engineering Control of Dust Hazard, National Health Commission of People's Republic of China, 100083, Beijing, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China; State Key Laboratory of High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing, Ministry of Education, 100083, Beijing, China; Key Laboratory for Engineering Control of Dust Hazard, National Health Commission of People's Republic of China, 100083, Beijing, China; Corresponding author. School of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China.School of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China; State Key Laboratory of High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing, Ministry of Education, 100083, Beijing, China; Key Laboratory for Engineering Control of Dust Hazard, National Health Commission of People's Republic of China, 100083, Beijing, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China; State Key Laboratory of High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing, Ministry of Education, 100083, Beijing, China; Key Laboratory for Engineering Control of Dust Hazard, National Health Commission of People's Republic of China, 100083, Beijing, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, Beijing, China; State Key Laboratory of High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing, Ministry of Education, 100083, Beijing, China; Key Laboratory for Engineering Control of Dust Hazard, National Health Commission of People's Republic of China, 100083, Beijing, ChinaIt is meaningful to study the diffusion of toxic substances and evacuation routes in metal mine fires. In this paper, numerical simulation was employed to investigate the characteristics of smoke diffusion, the variations in fire-induced pressure, and the evacuation routes of miners in full-scale mine fire scenarios. The results indicated that CO concentration significantly decreased at roadway corners, and both CO concentration and temperature gradually decreased with increasing depth. It is a good choice for miners to escape towards the deeper areas or along curved structural directions. Miners in the working face near the fire zone had an optimal evacuation window of only 3 min, and the optimal evacuation times varied for different mining levels and sublevels. Consequently, miners must formulate different evacuation plans within the optimal time frame. The fire-induced pressure is exponentially related to temperature rise, with a fitted equation for a 10° ramp expressed as Pfire = 150.58ΔT0.18. A methodology for planning mine fire evacuation routes was proposed, resulting in improved evacuation routes that allow miners to avoid more dangerous routes, thereby significantly enhancing evacuation safety.http://www.sciencedirect.com/science/article/pii/S2214157X24017271Underground mineFire simulationSmoke diffusionFire-induced pressureEvacuation routes |
| spellingShingle | Menghui Xiao Cuifeng Du Yuan Wang Jiuzhu Wang Baomeng Chang Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks Case Studies in Thermal Engineering Underground mine Fire simulation Smoke diffusion Fire-induced pressure Evacuation routes |
| title | Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| title_full | Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| title_fullStr | Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| title_full_unstemmed | Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| title_short | Research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| title_sort | research on smoke diffusion and evacuation routes of mine fires with complex roadway networks |
| topic | Underground mine Fire simulation Smoke diffusion Fire-induced pressure Evacuation routes |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017271 |
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